Breast lumps, discharge and breastfeeding problems

A new breast symptom needs diagnostic assessment

Ask about onset, change, relation to the cycle, pain, discharge, pregnancy/lactation, prior disease and family history. Examine both breasts and regional nodes with consent and an offered chaperone. Skin tethering, nipple retraction, a firm irregular lump, inflammatory change or unilateral spontaneous bloody discharge raises concern, but an apparently mobile or painless lesion can still be malignant. A recent normal screening mammogram does not exclude a symptomatic cancer. Symptoms belong to a diagnostic pathway rather than waiting for the next routine BreastScreen invitation.

Cancer Australia's triple-test approach combines history/examination, appropriate imaging and non-excisional tissue assessment when indicated. Ultrasound and mammography are selected according to age, pregnancy/lactation and the clinical problem. A clinically suspicious mass cannot be dismissed solely because one imaging component is reassuring. Concordance matters: disagreement between examination, imaging and pathology requires further specialist review. Core biopsy supplies tissue information for many suspicious masses; referral urgency reflects the overall assessment, not one score alone.

Lumps, pain and discharge

Fibroadenoma, cysts and fibrocystic change are common benign causes, but management depends on diagnostic certainty, size, symptoms and evolution. A cyst that does not resolve as expected or has concerning features needs further assessment. Mastalgia can be cyclic, focal or non-breast chest-wall pain. Persistent focal symptoms merit examination and selected imaging; severe pain is not the only marker of important disease. Provide supportive treatment when assessment is reassuring and explain what change should trigger review.

Physiological bilateral multiduct discharge differs from unilateral spontaneous single-duct bloody or clear discharge, which merits specialist assessment. Galactorrhoea prompts pregnancy, medicine and endocrine evaluation when appropriate. Ask about antipsychotics and other prolactin-raising drugs without stopping essential therapy abruptly. Male breast symptoms also need assessment: gynecomastia can arise from medicines, endocrine or liver disease, while an eccentric hard mass, skin change or nodes raises cancer. Do not assume that breast cancer is impossible in a male patient.

Breastfeeding support

Observe feeding when consented and assess attachment, positioning, milk transfer and the infant's hydration, weight trajectory and output. Pain can follow nipple trauma, oversupply, inflammation, vasospasm or other causes; ask about the pattern rather than attributing every painful feed to candidiasis. Involve a skilled lactation clinician where available. Protect maternal rest, nutrition and mental health. Supplementation decisions depend on infant safety and feeding goals, with a plan to maintain supply if desired rather than a moral judgement about feeding method.

An unsettled infant does not necessarily have inadequate milk, and a pump's output does not precisely measure supply. Conversely, lethargy, reduced urine output, substantial weight concerns or jaundice requires medical assessment of intake and illness. Feeding difficulties can reflect prematurity, oral/neurological disease or infection. Compare serial reliable weights and observe function. Avoid promising that one latch adjustment solves every problem or forcing continued breastfeeding when the patient has made an informed decision to use another method.

Mastitis and abscess

Local inflammation with breast tenderness can occur during lactation, with bacterial infection assessed by systemic features and course. Provide suitable analgesia and feeding support; avoid aggressive deep massage and excessive pumping intended to “empty” the breast, which can worsen tissue injury or oversupply. Antibiotics are selected when bacterial mastitis is suspected under the current pathway. Ongoing feeding or expression is often feasible, tailored to comfort, milk transfer and advice. Review early if symptoms worsen or fail to improve.

A persistent fluctuant or focal painful mass raises abscess and may need ultrasound-guided drainage and culture. Antibiotics alone may not achieve source control. Severe illness requires hospital assessment. Non-lactational recurrent inflammation or persistent erythema/mass needs investigation for underlying pathology, including inflammatory cancer. Do not allow the mastitis label to persist indefinitely without reassessing. Explain medication compatibility through current breastfeeding resources and individual circumstances rather than advising routine cessation for every antibiotic.

Applied decisions and communication

A forty-five-year-old with a new palpable lump and a recent normal screening image still needs diagnostic triple assessment. A breastfeeding parent with pain and an infant losing weight needs examination of both members of the feeding dyad and urgent intake assessment when indicated. A persistent focal collection after antibiotics needs drainage assessment. Ask what outcomes matter to the patient and coordinate breast services, primary care, midwifery and lactation support, avoiding conflicting instructions.

When malignancy is suspected, explain uncertainty without falsely reassuring or declaring cancer before tissue diagnosis. Provide a clear timeline for investigation, a named result-follow-up clinician and practical contact details. If a patient cannot attend because of transport or caregiving duties, help arrange a workable pathway. The examination tests diagnostic reasoning and continuity of care as well as recognising a typical lump description.

Cancer Australia: new breast symptoms.

Review checkpoints

• A suspicious breast lump requires assessment even during lactation.
• Clinical, imaging and pathology findings must be concordant in triple assessment.
• Poor infant intake needs evaluation of feeding technique, hydration and weight trajectory.